Greyhawk Ruins Sourcebook

Subtitle: "A Living Greyhawk Supplement for the 'Greyhawk Ruins' Campaign Arc and Core Adventures Set in the Domain of Greyhawk." From the Introduction: "This document is the primer for 'Greyhawk Ruins' campaign arc and includes both setting and character generation information. The adventures comprising this arc take place in the Free City of Greyhawk and the nearby ruins of Castle Greyhawk."